Pipe connection.



N0.a51.956. PATENTBD JUNE z5. 1907. H. MUELLm PIPE CONNEGTIQN.

'APPLIUATION FILED MAY 7. 1906.

/zzs @flor/Icy4 UNITED sTATEs PATENT oEEioE.Y

HENRY MUELLER', or DECATUE, TLLINO; AssIcNoE To n. MUELLEE 1 MANUEACTUETNG COMPANY, or nEcATUR, ILLiNois.

PIPE CONNECTION.

Specification of Letters Patent.

Patented June 25, 1907.

Application led May '7, 1906. Serial Nc. 315,702, f

T al?, whom, it may concern: y

Be it known that I, HENRY MUELLER, a resldent of the city of Decatur, county of Macon, and State of Illinois, have invented with basin cocks, although not confined to said uses, and the object is to provide a secure and durable connection which will not be aected by any ordinary heat and .which my improvements and Fig. 4 is an end view of the joint ring of the connection.

, In FiO. l the parts are shown as they appear before the joint ring is compressed, 1n Fig. 2 the joint ring is shown compressed and in Fig. 3 a modification of my invention j is represented.

An externally-threaded section of pipe is shown at l, said section in this instance bemg in the forinof a tail piece of a bath cock or a basin cock, and the connecting end of the tail piece is internally flared, or tapered, as shown at 2. The pipe 3 has its connecting .end radially flanged as shown at 4. The coupling nut 5 is internally screw-threaded to engage the tail piece l and it has the Iinternal shoulder 6 against which the flanged end of pipe 3 abuts. A lead joint-ring 8 has at one end a salient annular bearing surface 8b Which extends beyond the body of the rino" and bears a ainst the flange 4 of pipe 3, anc the externaI surface of the remainder of the joint ring is tapered somewhat and rounded longitudinally in order to bring a rather narrow surface into contact with the flared surface of the tail piece preparatory to compressing the ring in the forming of a connection.

A ring 7 of brass, or other comparatively sti metal lits-inside the j oint-ring and keeps the internal diameter thereof in shape.

In Fig. 3 the flange 4EL of pipe 3 is concavoconvex to form a ball-joint bearing against the rounded end or salient bearing surfaceSl1 of the joint-ring and the bearing edge 68L of the shoulder of the coupling nut is chamfered to conform to the shape of the flange. l

When the parts are arranged in place preparatory to completing a connection, the sali-- .ent part Sbfof the joint-ring bears against the flange 4 of the pipe 3 and the flared inner surface'of the connecting end of the tail piece bears against a comparatively narrow roun ded surface of the joint ring. As the `71' nut is screwed onto the tail piece, to wn.-

plete the connection, the stiff metal ring holds the j oint-ring from collapsing, the salient bearing surface 8b flattens against the flange and the rounded outer surface of joint ring is pressed into close and more eX- tended contact with the flared surface of the tail piece; all as shown in Fig. 2.

In com leting a joint in the manner described, with the construction shownv in Figs, 1, 2 and 4, the parts may'be madeto conform to as much variation in alinement of the oonjoined pipe sections asis likely to exist under ordinary circumstances, but when'it is desiredv to-provide for an unusual degree of disalinement the constructionA may be as shown in Fig. 3 and the flange may be swung to. a considerable extent between the joint-ring and th'e shoulder of the coupling nut, yafter the manner of a ball-bearing.

The flanges 4 and 4aare formed on the ends of pipes 8, and are therefore entirely stable and secure. This mode of providing a ring or collar for a coupling nut of a pipe connection is of utility apart from the special form of oint-ring herein described.'-

The lead ring is unaffected by the action of any heat developed in pipes under ordinary circumstances and it will stand repeated loosening and retightening, or re-adjusting, of the coupling without becoming in any `manner impaired or inoperative.

By making the sustaining ring separate from the pipe sections to be conjoined, the flange of the pipe section 3 may be formed by pressure and the other pipe section 1 may be cast, both at a reduced cost of construction. The sustaining ring does not necessarily enter vor fit either section, although it is possible that one of its ends may be pushed into one of the sections in the act of making a connection. However, it is not contemplated that this will take place, as the sole function of the sustaining ring is to prevent the joint- IOO IOS

ring from collapsing. To these ends the sustaining ring is made as short as possiblenever longer and sometimes shorter than the length of the joint-ring.

longitudinally beyond the corresponding end of the sustaining ring as shown in Figs. l and 2, because the pressure from the flange 4 is longitudinal. When said flange is oblique as shown at 4a and its pressure is both longitudinal and inward, the salient portion 8 of the joint-ring is an oblique projection, and the sustaining ring 7 by preference extends the full length of the joint-ring. In either case the salient portion projects ina direction substantially at right angles to the face ofthe iiange which is to bear against it in the act of making a connection, whereby this end of the joint-ring will be compressed in such manner that it will be pressed upon the sustaining ring while the flaring mouth of the pipe section will compress the remaining portion of the joint-ring. Hit should happen in this action that the inner wall of either pipe sece tion should strike its end of the sustaining ring, the fact that the jointring is of soft material will 'allow the sustaining ring to be moved slightly while the joint-ring is being compressed into position; but I considerthis eventuality quite unlikely, because ordi- ;lnarily the sustaining ring is shorter than the j joint-ring even 1n its compressed condition.

l claim as new and desire to secure by Letters Patent2- 1. A connecting `ring for pipe joints cornprising a sti` metal cylindrical sustaining ring and a soft metal joint-ring surrounding said sustaining ring for all of its length and having a tapered exterior and a salient projection at its thicker end which projection is rounded on its outer face.

2. A connecting ring 'for pipe joints comprising a stiff metal cylindrical sustaining ring and a soft metal joint-ring surrounding said sustaining ring for all of its length and j angles to the face of l/Vhen it is shorter j against it. the salient end 8b of the joint-ring projects having a tapered exterior and a salientlprojection at its thicker end on a line at right the part to be brought 3. A connecting ring for pipe joints comprising a stiff metal cylindrical sustaining ring and a soit metal joint-ring surrounding said sustaining ring for all of its length and having a tapered exterior 'and an annular 4salient projection at its thicker end extend ing beyond one end of the sustaining ring and parallel with its axis.

4. A pipe joint comprising an externallythreaded pipe section internally iiared at its connecting end, a second pipe section having an exterior flange at its extremity, a coupling nut internally threaded to iit said external threads and having an internal shoulder at ,one end swiveled on said second pipe section behind its ilange, a yielding joint-ring having a salient projection at one end adapted to rest against said flange and a tapered exterior'adapted to tinto said ilaring end, and a stiff sustaining ring within and no, longer than said joint-ring.

5. A pipe joint comprisin an externally threaded pipe section interna ly tlared at its connecting end, a second pipe section'having an exterior right angular ilange at its ex.

tremity, a coupling nut internally threaded to tit said external threads and having an internal right angular shoulder at one end swiveled on said second pipe section behind its flange, a yielding joint-ring having a salient longitudinal projection at one end adapted terior adapted to iit into said flaring end, and a stiff sustainingring Within and shorter than the join t-ring.

In testimony whereof I sign my name in the presence of two subscribing witnesses.

HENRY MUELLER. Witnesses:

E. A. SKELLEY,

JOHN L. WA-DDELL.4

.8o to rest against said flange anda tapered ex- 

